An Atlas V rocket is slated to launch the next Space Based Infrared System satellite, or SBIRS, from Cape Canaveral. The satellites can detect ballistic missile launches from orbit.
United Launch Alliance

January 2018: A United Launch Alliance Atlas V rocket stands on Launch Complex 41 at Cape Canaveral Air Force Station with the Air Force's SBIRS GEO Flight 4 missile warning satellite.(Photo: United Launch Alliance)